function htmlEncode(str)  
{  
    var s = "";  
    if (str.length == 0) return "";
    s = str.replace(/</g, "&lt;");  
    s = s.replace(/>/g, "&gt;");  
    s = s.replace(/ /g, "&nbsp;");  
    s = s.replace(/\'/g, "&#39;");  
    s = s.replace(/\"/g, "&quot;");  
    s = s.replace(/\n/g, "<br>");  
    return s;  
}  
	 
function htmlDecode(str)  
{  
    var s = "";  
    if (str.length == 0) return "";  
    s = str.replace(/&lt;/g, "<");  
    s = s.replace(/&gt;/g, ">");  
    s = s.replace(/&nbsp;/g, " ");  
    s = s.replace(/&#39;/g, "\'");  
    s = s.replace(/&quot;/g, "\"");  
    s = s.replace(/<br>/g, "\n");  
    return s;  
}

function dealFloat(str)
{
    var t = parseFloat(str);
    return Math.abs(Math.round(t * 100) / 100);
}